I believe the CQRs come stock with an m120 spring, that should put me around 400fps with .2s right? Also will the angel cylinder work? Should I just go with the KWA inner barrel and km4 cylinder?

I would grab yourself a KWA Type 0.5 and see what the performance is like. From there you can decide on a TBB. The cylinder change will get you 370 FPS +/-. From there I personally would go with a KM Head 6.02 TBB: http://store.kwausa....arrel395mm.aspx

You will need to do one of two things to add the longer inner barrel:

Add a suppressor to cover the inner barrel

Add a longer outer barrel

This will take you into the 400 FPS range.

These two changes will easily put you at an effective range of 200+ feet with the proper ammo.

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Posted 03 October 2013 - 03:56 AM

The KWA 2GX bucking can handle FPS up to about 475 (measured with 0.20g bbs) no matter what weight bb you use with a harder nub. With that said you can also do a flat nub mod much like an Mnub and when used in combination with a V style KWA 2GX bucking you will notice improved grouping and distance.

I believe the CQRs come stock with an m120 spring, that should put me around 400fps with .2s right? Also will the angel cylinder work? Should I just go with the KWA inner barrel and km4 cylinder?

Concur with gcw360,to get 400fps with your longer barrel, you will also have to change to the higer volume cylinder found in the KM4A1/RIS/16 etc (KWA part #M033), otherwise you will be at around 320 fps.

My son is running and CQR mod 1 with the Angel Custom 407mm with a 6" mock suppressor no problems, stock M120 spring, shooting around 390fps.